diff --git a/formats/bits_signed_shift_b32_le.ksy b/formats/bits_signed_shift_b32_le.ksy
new file mode 100644
index 000000000..b1f84b336
--- /dev/null
+++ b/formats/bits_signed_shift_b32_le.ksy
@@ -0,0 +1,11 @@
+# Make sure that languages with 32-bit operators (JavaScript) use *unsigned*
+# (aka zero-fill) right shift, not signed (sign-propagating) right shift. This
+# test will fail if a signed shift is used.
+meta:
+  id: bits_signed_shift_b32_le
+  bit-endian: le
+seq:
+  - id: a
+    type: b31
+  - id: b
+    type: b9
diff --git a/formats/bits_signed_shift_b64_le.ksy b/formats/bits_signed_shift_b64_le.ksy
new file mode 100644
index 000000000..1554026ed
--- /dev/null
+++ b/formats/bits_signed_shift_b64_le.ksy
@@ -0,0 +1,11 @@
+# Make sure that languages with 64-bit operators (Java, PHP) use *unsigned* (aka
+# zero-fill) right shift, not signed (sign-propagating) right shift. This test
+# will fail if a signed shift is used.
+meta:
+  id: bits_signed_shift_b64_le
+  bit-endian: le
+seq:
+  - id: a
+    type: b63
+  - id: b
+    type: b9
diff --git a/spec/ks/bits_signed_shift_b32_le.kst b/spec/ks/bits_signed_shift_b32_le.kst
new file mode 100644
index 000000000..b12c6e890
--- /dev/null
+++ b/spec/ks/bits_signed_shift_b32_le.kst
@@ -0,0 +1,7 @@
+id: bits_signed_shift_b32_le
+data: bits_signed_shift_b32_le.bin
+asserts:
+  - actual: a
+    expected: 0
+  - actual: b
+    expected: 0xff
diff --git a/spec/ks/bits_signed_shift_b64_le.kst b/spec/ks/bits_signed_shift_b64_le.kst
new file mode 100644
index 000000000..f2a94d2e0
--- /dev/null
+++ b/spec/ks/bits_signed_shift_b64_le.kst
@@ -0,0 +1,7 @@
+id: bits_signed_shift_b64_le
+data: bits_signed_shift_b64_le.bin
+asserts:
+  - actual: a
+    expected: 0
+  - actual: b
+    expected: 0xff
diff --git a/src/bits_signed_shift_b32_le.bin b/src/bits_signed_shift_b32_le.bin
new file mode 100644
index 000000000..27ab86823
Binary files /dev/null and b/src/bits_signed_shift_b32_le.bin differ
diff --git a/src/bits_signed_shift_b64_le.bin b/src/bits_signed_shift_b64_le.bin
new file mode 100644
index 000000000..3876d2087
Binary files /dev/null and b/src/bits_signed_shift_b64_le.bin differ